Chain skirt



FIG. 1 is a perspective view of a chain skirt showing my new design in the position of use, the broken lines partially showing a torso skirt and belt throughout the view being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front view of the chain skirt shown in FIG. 1; and,

FIG. 3 is a rear view thereof. 

The ornamental design for a chain skirt, as shown and described. 